Qr has endpoints at q (11, 13) and r(7, 14). find the midpoint m of qr

write the coordinates as decimals or integers

m = ,

M=(9, 13.5)

Step-by-step explanation:

What you do is you need to use the midpoint formula.

(x_1+x_2/2), (y_1+y_2/2).

(11, 13) and (7, 14) are your points and you put those numbers into the equation.

11 and 7 are x and 13 and 14 are y.

(11+7/2), (13+14/2)

M=(9, 13.5) is your answer.

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!